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The Micro-Deval Apparatus meets or exceeds the accuracy and repeatability requirements of the “Standard Test Method for Resistance of Coarse Aggregates to Degradation in the Micro-Deval Apparatus”The MD-2000 Apparatus is supplied with two stainless steel jars, stainless steel abrasive charges and a magnetic pickup. A prepared aggregate specimen is placed in the abrasion jar along with an abrasive charge of stainless steel ballsand water. The sealed jar is then placed on a set of rollers and turned for a period of time. At test completion, the aggregate sample is removed from the jar and tested to determine degradation resulting from abrasion.Specifications:Manufacturer: Gilson InstrumentsPart No: MD-2000Model No: Micro DevalJar Revolution Speed: 100 ±5 rpmMax Revolution Count: 32,762Repeatability: ±0.5 revolutionElectrical: 115V/60Hz, 15ampDimensions (WxDxH): 20x13x39.5in WxDxHNet Weight: 144lb Est. Shipping Weight: 195lb Additional Prep Fees May Apply